FREE REPAIR MANUALS & LABOR GUIDES 1982-2013 Vehicles
Courtesy of Operation CHARM: Car repair manuals for everyone.

Checking For Oxygen Sensor Switching

SYMPTOM
* CHECKING FOR OXYGEN SENSOR SWITCHING

POSSIBLE CAUSES
- oxygen sensor < 0.10 volt defective
- oxygen sensor signal circuit short to ground
- Air filter or inlet ducts restrictions
- Fuel pump, lines, or injectors defective